Ingredients
The following ingredients have 24 Servings
- 2½ cups flour
- 1¼ teaspoons baking powder
- ¼ teaspoon baking soda
- 1 teaspoon salt
- 1¾ cups sugar
- 2 teaspoons vanilla extract
- ½ cup butter (melted and cooled to room temperature)
- 1 cup buttermilk (room temperature)
- ⅓ cup vegetable oil
- 3 large eggs (separated room temperature)
- 3 large egg yolks room temperature
- ½ cup butter at room temperature
- 6 ounces semi sweet chocolate chips
- ⅓ cup cocoa powder sifted
- 1 teaspoons vanilla extract
- 2-3 cups powdered sugar sifted
- ⅔ cup sour cream
